Springmvc搭建简单测试demo

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创建第一个简单springmvc步骤。

（一）首先配置好jdk、tomcat。

（二）导入jar包

（三）添加配置文件：springmvc.xml

<?xmlversion="1.0"encoding="UTF-8"?>

<beansxmlns="http://www.springframework.org/schema/beans"

xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

xmlns:context="http://www.springframework.org/schema/context"

xmlns:mvc="http://www.springframework.org/schema/mvc"

xsi:schemaLocation="http://www.springframework.org/schema/beanshttp://www.springframework.org/schema/beans/spring-beans.xsd

http://www.springframework.org/schema/contexthttp://www.springframework.org/schema/context/spring-context-4.0.xsd

http://www.springframework.org/schema/mvchttp://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">

<context:component-scanbase-package="com.atguigu.springmvc"></context:component-scan>

<beanclass="org.springframework.web.servlet.view.InternalResourceViewResolver">

<propertyname="prefix"value="/WEB-INF/views/"></property>

<propertyname="suffix"value=".jsp"></property>

</bean>

<beanclass="org.springframework.web.servlet.view.BeanNameViewResolver">

<propertyname="order"value="100"></property>

</bean>

<beanid="messageSource"

class="org.springframework.context.support.ResourceBundleMessageSource">

<propertyname="basename"value="i18n"></property>

</bean>

<mvc:view-controllerpath="/success"view-name="success"/>

<mvc:annotation-driven></mvc:annotation-driven>

</beans>

（四）配置web文档

<?xmlversion="1.0"encoding="UTF-8"?>

<web-appxmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xmlns="http://java.sun.com/xml/ns/javaee"xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"xsi:schemaLocation="http://java.sun.com/xml/ns/javaeehttp://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"id="WebApp_ID"version="3.0">

<display-name>SpringMVC_Demo0621a</display-name>

<welcome-file-list>

<welcome-file>index.html</welcome-file>

<welcome-file>index.htm</welcome-file>

<welcome-file>index.jsp</welcome-file>

<welcome-file>default.html</welcome-file>

<welcome-file>default.htm</welcome-file>

<welcome-file>default.jsp</welcome-file>

</welcome-file-list>

<servlet-name>

dispatcherServlet

</servlet-name>

<servlet-class>

org.springframework.web.servlet.DispatcherServlet

</servlet-class>

<init-param>

<param-name>contextConfigLocation</param-name>

<param-value>/WEB-INF/springmvc.xml</param-value>

</init-param>

<load-on-startup>1</load-on-startup>

</servlet>

<filter-name>HiddenHttpMethodFilter</filter-name>

<filter-class>org.springframework.web.filter.HiddenHttpMethodFilter</filter-class>

</filter>

<filter-mapping>

<filter-name>HiddenHttpMethodFilter</filter-name>

<url-pattern>/*</url-pattern>

</filter-mapping>

<servlet-mapping>

<servlet-name>dispatcherServlet</servlet-name>

<url-pattern>/</url-pattern>

</servlet-mapping>

</web-app>

（五）创建controller

package com.atguigu.springmvc.handler;

importorg.springframework.stereotype.Controller;

importorg.springframework.web.bind.annotation.RequestMapping;

importorg.springframework.web.bind.annotation.RequestMethod;

importorg.springframework.web.bind.annotation.ResponseBody;

/**

*@author HH

*@date 2017-6-21

*@version jdk 1.7.0

*@function springmvc测试1

@Controller

@RequestMapping("/HelloWork")

public class HelloWork {

@ResponseBody

@RequestMapping(value="/helloword",method=RequestMethod.GET)

public Stringhello(){

//在控制台后边打印出下边这句话，并跳转到success页面，

System.out.println("hello,create aworld!");

return "success";

}

@RequestMapping("/helloword2")

@ResponseBody

//在控制台后边打印出下边这句话，并输出success

publicString sayHello(){

System.out.println("sayhello to springmvc");

return"success";

}

//06月22日方法

//必须使用post提交方法

}

Springmvc搭建框架初步（完成以上的springmvc.xml配置和web.xml配置后）

（一）springmvc通过get方法跳转。

@RequestMapping(value="testMethod",method=RequestMethod.GET)

public String testMethod(){

System.out.println("this is 06月22日测试");

return"success";

}

在jsp中：

<ahref="<%=basePath%>SpringMVC6_22/testMethod">06月22日测试</a>

（二）通过params传参，把age判断不为10才能正常跳转

@RequestMapping(value="testMethod02",params={"username","age!=10"},method=RequestMethod.GET)

public String testMethod02(){

System.out.println("this is 06月22日testMethod02测试");

return"success";

}

在jsp中：

<ahref="<%=basePath%>SpringMVC6_22/testMethod02?username=aaa&&age=12">06月22日testparam测试</a>

**（三）在通过使用占位符。/*/表示上一层任意的字符，也可以匹配到。**

/* //*匹配任何字符，但是必须是该路径下，requestmapping层必须要写上才能找到*/

/* 2个*表示任意层*/

@RequestMapping("/*/testAntString03")

//只能是一层，上一层是任意的也可以

public StringtestAntString03(){

System.out.println("testAntString03");

return"success";

}

在jsp中：

<ahref="<%=basePath%>SpringMVC6_22/year/testAntString03">通过*访问</a>

（四）可以是任意多层。

@RequestMapping("/**/testAntString04")

//可以是多层任意的

public StringtestAntString04(){

System.out.println("testAntString04");

return"success";

}

在jsp中：（year/fdf/fsdfd为任意多层）

<ahref="<%=basePath%>SpringMVC6_22/year/fdf/fsdfd/testAntString04">通过多层**访问</a>

（五）通过PathVariable传参

@RequestMapping("/testAntString05/{id}/{name}")

//可以是多层任意的

public String testAntString05(@PathVariable("id") Integerid,@PathVariable("name") Stringname){

System.out.println("testAntString05的id："+id+",name:"+name);

return"success";

}

在jsp中：

<ahref="<%=basePath%>SpringMVC6_22/testAntString05/25/popo">通过参数去访问</a>

（六）通过rest，_method参数传参

原理：

@RequestMapping(value="order/{id}",method=RequestMethod.DELETE)

//可以是多层任意的

public StringtestAntString06Delete(@PathVariable("id")Integerid){

System.out.println("testAntString06Delete的id："+id);

return"success";

}

//查询用户

@RequestMapping(value="/order/{id}",method=RequestMethod.GET)

//可以是多层任意的

public StringtestAntString06GET(@PathVariable("id")Integerid){

System.out.println("查询用户的id："+id);

return"success";

}

//post 询无id

//添加户

@RequestMapping(value="/order/{id}",method=RequestMethod.PUT)

//可以是多层任意的

public StringtestAntString06PUT(@PathVariable("id")Integerid){

System.out.println("testAntString06PUT添加用户的id："+id);

//HiddenHttpMethodFilter?

return"success";

}

在jsp中：

<hr>

<h1>通过rest删除添加用户</h1>

<formaction="<%=basePath%>SpringMVC6_22/order/22"method="post">

<inputtype="hidden"name="_method"value="PUT"/>

<inputtype="submit"value="添加用户id PUT">

</form>

<formaction="<%=basePath%>SpringMVC6_22/order/22"method="post">

<inputtype="hidden"name="_method"value="DELETE"/>

<inputtype="submit"value="删除用户">

</form>

<formaction="<%=basePath%>SpringMVC6_22/order/22"method="post">

<inputtype="hidden"name="_method"value="GET"/>

<inputtype="submit"value="查找用户">

</form>

（七）通过RequestParam绑定参数。（required=false表示允许无参数）

@RequestMapping(value="/testAfternoon0622Test02",method=RequestMethod.POST)

public StringtestAfternoon0622Test02(@RequestParam("username")Stringusername,@RequestParam(value="age",required=false)Integerage){

System.out.println("this is http请求处理方法签名测试！");

System.out.println("username:"+username+"，age:"+age);

returnSUCCESS;

}

在jsp中：

<h1>无参数测试</h1>

<formaction="<%=basePath%>SpringMVC6_22/testAfternoon0622Test02?username=kaka" method="post">

<inputtype="submit"value="绑定无参数参数用户">

</form>

<hr>

（八）通过对象绑定参数

在controller中代码：

@RequestMapping(value="/testAfternoon0622Test",method=RequestMethod.POST)

public StringtestAfternoon0622Test(@RequestParam(value="username",defaultValue="play",required=false)Stringusername,@RequestParam(value="age",defaultValue="20",required=false)Integerage){

System.out.println("this is http请求处理方法签名测试！");

System.out.println("username:"+username+"，age:"+age);

returnSUCCESS;

}

@RequestMapping(value="/testPOJO",method=RequestMethod.POST)

public String testPOJO(@ModelAttribute("user")Useruser){

System.out.println("user的员工信息：\n"+user);

returnSUCCESS;

}

创建对象：

package com.atguigu.springmvc.entity;

publicclass User {

private Stringname;

private Stringpassword;

private Stringemail;

private Integerage;

public String getName() {

returnname;

}

publicvoid setName(Stringname) {

this.name =name;

}

public String getPassword() {

returnpassword;

}

publicvoid setPassword(Stringpassword) {

this.password =password;

}

public String getEmail() {

returnemail;

}

publicvoid setEmail(Stringemail) {

this.email =email;

}

public Integer getAge() {

returnage;

}

publicvoid setAge(Integerage) {

this.age =age;

}

@Override

public String toString() {

return"User[name=" +name +", password=" +password +", email="

+ email + ",age=" + age + "]";

}

在jsp中：

<hr>

<formaction="<%=basePath%>SpringMVC6_22/testAfternoon0622Test?username=rtrd&age=43" method="post">

<inputtype="submit"value="绑定参数用户">

</form>

<hr>

（九）通过嵌套对象测试练习

创建对象Address，嵌套对象MyUser

package com.atguigu.springmvc.entity;

publicclassAddress {

private Stringline;

private Stringcity;

private Stringprovince;

private MyUsermyUser;

// HiddenHttpMethodFilter

public MyUser getMyUser() {

returnmyUser;

}

publicvoid setMyUser(MyUsermyUser) {

this.myUser =myUser;

}

public String getLine() {

returnline;

}

publicvoid setLine(Stringline) {

this.line =line;

}

public String getCity() {

returncity;

}

publicvoid setCity(Stringcity) {

this.city =city;

}

public String getProvince() {

returnprovince;

}

publicvoid setProvince(Stringprovince) {

this.province =province;

}

@Override

public String toString() {

return"Address [line="+line+", city="+city+", province="

+province+", myUser=" +myUser+"]";

}

@RequestMapping(value="/testPOJOnoObject",method=RequestMethod.POST)

public StringtestPOJOnoObject(Addressaddress){

//本类的不需要加上对象名，而如果是其他类的需要写上对象名字

System.out.println("user的员工信息：\n"+address);

System.out.println("address.getMyUser().getName():"+address.getMyUser().getName());

returnSUCCESS;

}

在jsp中：

<h1>POJO测试练习没有对象的</h1>

<formaction="<%=basePath%>SpringMVC6_22/testPOJOnoObject"method="POST">

this is test province:

Username: <input type="text"name="myUser.name"><br>

password:<inputtype="text"name="myUser.password"><br>

email:<inputtype="text"name="myUser.email"><br>

age:<inputtype="text"name="myUser.age"><br>

line: <inputtype="text"name="line"><br>

city:<inputtype="text"name="city"><br>

province:<inputtype="text"name="province"><br>

<inputtype="submit"value="提交POJO用户"><br>

</form>

（十）writer对象使用练习测试

@RequestMapping("/testServletAPI")

publicvoidtestServletAPI(HttpServletRequestrequest,HttpServletResponseresponse

,Writer writer)throwsIOException{

System.out.println(response.toString());

writer.write("<xml>hello world</xml>");

}

在jsp中：

<hr>

<h1>testServletAPI测试练习</h1>

<ahref="<%=basePath%>SpringMVC6_22/testServletAPI">testServletAPI测试</a>

<br>

<hr>

（十一）springmvc的Map对象使用

@RequestMapping("/testMapTest")

public String testMapTest(Useruser,Map<String,Object>map){

map.put("time",new Date());

map.put("user",user);

System.out.println(user);

// user.setEmail("abc@qq.com");

return"result";//跳转这个页面

}

在jsp中

<h1>测试requestSCOPE的map测试练习</h1>

<formaction="<%=basePath%>SpringMVC6_22/testMapTest"method="POST">

this is test province:

Username: <input type="text"name="name"><br>

password:<inputtype="text"name="password"><br>

email:<inputtype="text"name="email"><br>

age:<inputtype="text"name="age"><br>

<inputtype="submit"value="提交"><br>

</form>

跳转到了result.jsp页面，因此，根据配置文档，创建页面。result.jsp页面如下：

<%@pagelanguage="java"import="java.util.*"pageEncoding="utf-8"%>

String path =request.getContextPath();

String basePath =request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";

<!DOCTYPEHTMLPUBLIC"-//W3C//DTDHTML 4.01 Transitional//EN">

<html>

<head>

<basehref="<%=basePath%>">

<title>My JSP 'result.jsp' starting page</title>

<metahttp-equiv="pragma"content="no-cache">

<metahttp-equiv="cache-control"content="no-cache">

<metahttp-equiv="expires"content="0">

<metahttp-equiv="keywords"content="keyword1,keyword2,keyword3">

<metahttp-equiv="description"content="This is my page">

<!--

<linkrel="stylesheet" type="text/css"href="styles.css">

-->

</head>

<body>

success! <br>

email:${requestScope.user.email}

time:${requestScope.time}

</body>

</html>

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